Dragon Age Keep Sync Troubleshooting - Un-equip, Save, Re-equip, Save

Once you've launched the game, made sure your settings are set to upload
character profiles, and you're logged in, open the save you want to
upload. Once in-game, un-equip a piece of equipment from your character, such as the helmet. Save your game with a new save.
Re-equip it and save again.

I usually let the game sit there for a few minutes to give it time to do
any uploading it needs to do. Then just repeat the saving with your
other characters that you want to upload. The data can take a couple of
hours to show up in the Keep.

At this point, give your characters some time to sync. If it's been a few hours and they have not shown up, proceed to the next step.